Re: Bug? Small samples in TABLESAMPLE SYSTEM returns zero rows

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Petr Jelinek <petr(at)2ndquadrant(dot)com>
Cc: Josh Berkus <josh(at)agliodbs(dot)com>, Simon Riggs <simon(at)2ndQuadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Bug? Small samples in TABLESAMPLE SYSTEM returns zero rows
Date: 2015-08-06 20:53:12
Message-ID: 20150806205312.GS2441@postgresql.org
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Petr Jelinek wrote:
> On 2015-08-06 22:25, Josh Berkus wrote:

> >If there is no appropriate place, I'll just write a blog.
>
> There is a blog post on 2ndQ blog page which tries to describe the sampling
> methods visually, not sure if it's more obvious from that or not. It's
> somewhat broken on planet though (only title there).

http://blog.2ndquadrant.com/tablesample-in-postgresql-9-5/

--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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